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. 2021 May 5;39(3):428–431. doi: 10.1002/hon.2872

FIGURE 1.

FIGURE 1

Determination of IgG (A) and IgM (1B) antibody levels against SARS‐CoV‐2 at different time points from SARS‐CoV‐2 infection onset. Horizontal dot line represents positive cut‐off value (12 UA/ml)